easy Set 51 Form Exercise

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [_] → [12, _] → [3, 9, 10]

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Answer: Row1[1]=31, Row2[2]=19

SubType
number-pyramid
Difficulty
easy
Levels
  • [31]
  • [12,19]
  • [3,9,10]
Base
  • 3
  • 9
  • 10
TopValue
31
HiddenCells
  • {"r":0,"c":0,"v":31}
  • {"r":1,"c":1,"v":19}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [30] → [19, _] → [10, _, 2]

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Answer: Row2[2]=11, Row3[2]=9

SubType
number-pyramid
Difficulty
easy
Levels
  • [30]
  • [19,11]
  • [10,9,2]
Base
  • 10
  • 9
  • 2
TopValue
30
HiddenCells
  • {"r":1,"c":1,"v":11}
  • {"r":2,"c":1,"v":9}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [20] → [_, 8] → [8, 4, _]

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Answer: Row2[1]=12, Row3[3]=4

SubType
number-pyramid
Difficulty
easy
Levels
  • [20]
  • [12,8]
  • [8,4,4]
Base
  • 8
  • 4
  • 4
TopValue
20
HiddenCells
  • {"r":1,"c":0,"v":12}
  • {"r":2,"c":2,"v":4}

Number Pyramid: Each block equals the sum of the two blocks below it. Fill the missing values. Pyramid (top to bottom): [29] → [17, 12] → [8, _, _]

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Answer: Row3[2]=9, Row3[3]=3

SubType
number-pyramid
Difficulty
easy
Levels
  • [29]
  • [17,12]
  • [8,9,3]
Base
  • 8
  • 9
  • 3
TopValue
29
HiddenCells
  • {"r":2,"c":1,"v":9}
  • {"r":2,"c":2,"v":3}